Spam is being sent on my behalf. What to do?

Question

Information Security

Hello.
Noticed spam mailing on our behalf. The sender is different, but our email is put in the headers.
At the same time, we often receive automatic responses from the robot about mailings from our side.
Is it possible to deal with this somehow?

Answer 1

read about spf and dmarc

Answer 2

spf, dkim, write abuse to the sender's host.

Answer 3

spf, dkim - will only partially solve the problem - Not all of your recipients check them.
But it’s worth
starting Abuza to write a waste of your time, such spam is mainly sent by bots from home networks with dynamic IP